Cardiac
NT-proBNP
Also known as: proBNP, BNP
What it means
A hormone the heart releases when it's under strain. Very high levels suggest heart failure. Used to sort breathlessness causes.
Typical normal range
<125 pg/mL (age <75)
Reference ranges vary by lab, age, sex, and pregnancy. Always check the range on your own report.
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Related terms in Cardiac
This is a plain-language explanation for patients, not clinical advice. AI can be wrong. Always confirm with your doctor.